“…One area where variants of this problem have received significant consideration is that of designing a cellular manufacturing system. Various authors have addressed the problem either as a sub-problem in the general context of system design (e.g., Nagi et al, 1990;Rajamani et al, 1992;Sankaran and Kasilingam, 1993;Xie, 1993;Ramabhatta and Nagi, 1998;Caux et al, 2000;Uddin and Shanker, 2002;Jayaswal and Adil, 2004;Kizil and Ö zbayrak, 2004;Schaller, 2005) or as a stand-alone problem (i.e., assuming that cell configurations are given) to be solved when major changes occur in the part demands or the product mix (e.g., Singh et al, 1992;Nsakanda, 2004, 2006). Most of the existing approaches proposed in these papers are limited to a single process plan for each part and cannot be readily extended to handle the case of multiple process plans (e.g., Sankaran and Kasilingam, 1993;Xie, 1993;Schaller, 2005).…”